Sent - USA (3)

 The Palace of Culture and Science.

Distance: 9 152 km

Received - Australia

Sydney, Australia's largest city, viewed across Kirribilli and Sydney Harbour. Sydney Opera House and the Royal Botanic Gardens can be seen to the left of the Harbour Bridge.

Distance: 15 572 km

Some photos - Baltic Sea

Received - Hong Kong

Trails of boats crisscrossing Victoria Harbour and the dazzling Hong Kong skyline. The postcard is longer than usual cards.

Distance: 8 288 km

TYC from USA

 Very nice person from USA decided to send me this "thank you card". I like the postcard so much!