Dublin:
How to visit Dublin (on a budget): https://www.tripsavvy.com/how-to-visit-dublin-on-a-budget-4141248
Dublin Visitor Centre 17 Lower O'Connell Street | 118 Grafton Street, Dublin Co.Dublin, Ireland +353 1 898 0700 http://www.dublinvisitorcentre.com/
Gravity Climbing Centre 6a, Goldenbridge Industrial Estate | Dublin 8, Dublin, Ireland +353 1 707 8585 http://www.gravityclimbing.ie/
Phoenix Park Parkgate St. | Conyngham Road, Dublin 8, Ireland +353 1 677 0095 http://www.phoenixpark.ie/
Courtlough Courtlough | Balbriggan, Dublin, Ireland +353 1 841 3096 https://www.courtlough.ie/adventures/ "Our outdoor activity centre is situated 10 minutes from Dublin Airport and just 25 minutes from Dublin city centre. We cater for groups of all sizes, so book now for an adrenaline filled day to remember!"
Imaginosity The Plaza, Beacon South Quarter | Sandyford, Dublin, Ireland +353 1 217 6130 http://www.imaginosity.ie/
(best for kids) Irish Whiskey Museum 119 Grafton Street, Dublin Dublin 2, Ireland +353 1 525 0970 http://www.irishwhiskeymuseum.ie/ Guinness Storehouse Market Street | St James Gate, Dublin D8, Ireland +353 1 408 4800 https://www.guinness-storehouse.com/en The Irish Emigration Museum Custom House Quay | The chq Building, Dublin D01 T6K4, Ireland +353 1 906 0861 http://epicchq.com/?utm_source=tripadvisor%20profile Awesome Walls Climbing Centre Unit 6, North Park Retail Park | Finglas, Dublin D11YP40, Ireland +353 1 880 0088 http://www.awesomewalls.ie/ National Library of Ireland Kildare Street, Dublin 2, Ireland +353 1 603 0200 http://www.nli.ie/en/homepage.aspx The Irish Potato Famine Top Floor, St Stephen's Green Shopping Centre, Dublin DUBLIN 2, Ireland +353 1 478 0888 http://www.theirishpotatofamine.com/ City Hall City Hall Exhibition Centre Dame Street | Cork Hill, Dublin D02 NP93, Ireland +353 1 222 2204 http://www.dublincity.ie/dublincityhall Dublin Spire O'Connell Street, Dublin, Ireland The National Wax Museum Plus 22 -25 Westmoreland Street | Temple Bar, Dublin 2, Ireland +353 1 671 8373 http://www.waxmuseumplus.ie/ Bank of Ireland 2 College Green, Dublin, Ireland 0664507738 Science Gallery Dublin The Naughton Institute, Pearse Street, Trinity College | Trinity College Dublin +353 1 896 4091 https://dublin.sciencegallery.com/ Irish Jewish Museum 3 Walworth Road | South Circular Road, Dublin 8, Ireland +353 1 453 1797 http://jewishmuseum.ie/ National Print Museum Haddington Road | Garrison Chapel, Beggars Bush, Dublin 4, Ireland +353 1 660 3770 http://www.nationalprintmuseum.ie/ Sphere Within Sphere (landmark) 4 Grafton Street | Trinity College, Dublin, Ireland Universal Links on Human Rights Amiens Street | Memorial Road, Dublin D1, Ireland https://www.facebook.com/pages/Universal-Links-on-Human-Rights/244520795558859 (a facebook page) 10 best golf courses in dublin: https://www.tripadvisor.ca/Attractions-g186605-Activities-c61-t60-Dublin_County_Dublin.html
Luxembourg: Pirate Ship Playground Avenue Monterey, Luxembourg City, Luxembourg Castle Playground 45 Rue Charlemagne, Luxembourg City 1328, Luxembourg Luxembourg American Cemetery Memorial Val du Scheid, Luxembourg City 2517, Luxembourg +352 43 17 27 https://www.abmc.gov/cemeteries-memorials/europe/luxembourg-american-cemetery#.WaMXVSiGM2x Le Chemin de la Corniche Chemin de la Corniche, Luxembourg City, Luxembourg +352 22 28 09 https://www.vdl.lu/ Grund Grund, Luxembourg City, Luxembourg +352 22 28 09 http://www.visitluxembourg.com/en/luxembourg/luxembourg Casemates du Bock Montee de Clausen, Luxembourg City, Luxembourg +352 22 67 53 https://www.lcto.lu/en Viaduc (Passerelle) From av. de la Gare to Plateau du St-Esprit, Luxembourg City, Luxembourg Place d'Armes Plaza de Armas, Luxembourg City 1136, Luxembourg http://www.lcto.lu/fr/adresse/architecture/places-d-armes Palace of the Grand Dukes (Palais Grand-Ducal) Rue du Marche-aux-Herbes, Luxembourg City, Luxembourg +352 46 70 70 http://www.lcto.lu/fr/adresse/regulartours/visites-du-palais-grand-ducal National Museum of Art and History (Musee National d'Histoire et d'Art) Marche-aux-Poissons | Rue Wiltheim, Luxembourg City 2345, Luxembourg +352 47 93 30 1 http://www.mnha.lu/ Luxembourg City Hall Place Guillaume II, Luxembourg City, Luxembourg https://www.vdl.lu/ Edmund Klein Park, Luxembourg Boulevard de Prince Henri, Luxembourg City, Luxembourg Luxembourg City History Museum 14, rue du Saint-Esprit, Luxembourg City 2090, Luxembourg +352 47 96 45 00 http://citymuseum.lu/le-musee/a Citadel of the Holy Spirit (Citadelle du St-Esprit) Plateau du St-Esprit, Luxembourg City, Luxembourg The Bank Museum 1 Place de Metz, Luxembourg City 1930, Luxembourg +352 40 15 24 50 https://www.bcee.lu/en/Discover-BCEE/Discover-BCEE/The-Bank-Museum Am Tunnel (BCEE Batiment Rousegaertchen) 16, rue Zithe, Luxembourg City, Luxembourg +352 40 15 24 50 http://www.bcee.lu/D%C3%A9couvrir-la-BCEE/D%C3%A9couvrir-la-BCEE/La-galerie-d%27art-contemporain-%27Am-Tunnel%27 Post Museum 'Place de la Gare'/rue d'Epernay, Luxembourg City, Luxembourg +352 40 88 72 55 https://www.postgroup.lu/fr/le-groupe/culture