€ Euro
I did a combination of Hostel Stay & Airbnb for my 7 day stay.
The hostel was very clean and staff were extremely friendly. This is convenient for someone who is looking for something very affordable. I paid 25 Euros per night for a bunk room (female only room). This hostel also had a lounge downstairs with great cocktails.
Link: https://tochostels.com/destinations/barcelona/
Park Güell
Mercat de la Boqueria (daily market with fresh food, juices, candy)
Flamenco Show + Dinner
Templo del Tibidabo
Sagrada Familia
Barceclona Stadium
Barceloneta Beach (one of my favorites)
Gothic Quarter

£ British Pound
Airbnb:
Walkable to many hot spots including the Tower of London.
Link: https://www.airbnb.com/rooms/911745253430603829?source_impression_id=p3_1722535703_P3bIRjw0oRBl1jKy
Borough Market
London Bridge
Buckingham Palace
Big Ben
*Pho in London was a must! We came across a pho spot, Caphe Pho*
London Eye
St. Paul's Cathedral

NOK - Norwegian Kron
Airbnb:
Oslo- https://www.airbnb.com/rooms/14370813?guests=1&adults=4&s=67&unique_share_id=0f380253-611e-4227-8efa-8035d16781c6
Vigra - https://www.airbnb.com/rooms/14215650?check_in=2024-10-01&check_out=2024-10-04&guests=1&adults=1&s=67&unique_share_id=a402807f-d4bd-4f56-99e9-40b8fbd9a630
Oslo - Ålesund - Bergen
These were our route destinations we decided to take. Keep in mind we traveled in December, so there were many shops and restaurants that we found closed or their hours of operation were very limited.

€ Euro
Airbnb: 9th District great location away from the center & easy access to metros*
We also had the comfort cooking at our Airbnb. We purchased groceries at local markets + fresh baguette from the bakeries near our stay.
Link: https://www.airbnb.com/rooms/633024441101447242?source_impression_id=p3_1722535566_P3E5NQcvdI3aTeCg
We walked 95% of this trip + Metro. Tickets for metro were purchased at designated station. Tickets for museums + Eiffel Tower + Disneyland were purchased beforehand at home, since reservations were needed as well.