US6235 - Early Chicago Skyscrapers (2017)

This is a serial proposal of 9 primarily commercial buildings in Chicago’s central business district, the “Loop.”The buildings are:
Auditorium Building                                        16TN  448139  4636208
Second Leiter Building                                     16TN  447952  4636279
Marquette Building                                          16TN  447752  4636621
Rookery Building                                            16TN  447571  4636545
Monadnock Building                                       16TN  447761  4636420
Old Colony Building                                        16TN  447808  4636280
Fisher Building                                                16TN  447818  4636325
Schlesinger & Mayer Building                         16TN  447950  4636824
[later Carson Pirie Scott & Co. department store]                   
Ludington Building                                          16TN  448020  4635421

Courtesy of scopemouth from Postcrossing forum

(lower left) Auditorium Building

US6234 - Central Park (2017)

 Courtesy of Linda718 from Postcrossing forum

US6233 - Ellis Island (2017)

 Courtesy of Linda718 from Postcrossing forum

US5254 - White Sands National Monument (2008)

Courtesy of linda718 from postcrossing forum

US6232 - Brooklyn Bridge (2017)

Courtesy of bogdanovskaya from postcrossing forum

US6237 - California Current Conservation Complex (2017)

• Point Reyes/Golden Gate                        
• Monterey Bay
• Greater Farallones                                
• Cordell Bank                              
• Farallon Islands                            
• California Coastal

Courtesy of msgforjohn from postcrossing forum

US5245 - Mount Vernon (2008)

Courtesy of MissDaisy66 from postcrossing forum

US5253 - Petrified Forest National Park (2008)

Courtesy of Dale from Canada

US5244 - Thomas Jefferson Buildings (2008)

Courtesy of sarahannsharp from postcrossing

Virginia State Capitol, Richmond