50 biggest European cities starting with a vowel (with map)

Can you name the 50 biggest European cities whose name starts with a vowel? You will have the help of a map! Big dots represent cities with more than 500.000 inhabitants and medium-sized dots represent cities with over 200.000. The remaining cities are represented by small dots.
Excluding russian cities too far east to appear on the map
Kazakhstan and the Caucasus are NOT counted as Europe in this quiz
source: wikipedia (https://es.wikipedia.org/wiki/Anexo:Ciudades_europeas_por_poblaci%C3%B3n)
Quiz by hugopernia
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Last updated: September 19, 2020
First submittedSeptember 18, 2020
Times taken263
Average score44.0%
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Population
City
14 657 434
Istanbul
1 010 783
Odessa
825 080
Amsterdam
666 757
Oslo
665 000
Athens
582 624
Essen
517 042
Antwerp
464 990
Edinburgh
408 025
Ivanovo
351 226
Arkhangelsk
343 779
Utrecht
330 525
Alicante
291 634
Ostrava
290 422
Iasi
288 631
Augsburg
270 416
Espoo
264 716
Aarhus
Population
City
245 885
Aachen
243 978
A coruña
229 447
Ivano-Frankivsk
227 659
Elche
227 100
Eindhoven
220 567
Oviedo
210 934
Oberhausen
210 118
Erfurt
201 124
Oulu
198 315
Almere
196 670
Aberdeen
196 367
Oradea
195 907
Alcalá de Henares
194 515
Almería
190 871
Armavir
176 683
Odense
175 136
Amadora
Population
City
174 030
Almada
173 599
Olsztyn
172 426
Albacete
167 354
Alcorcón
165 979
Edirne
163 830
Oldenburg
162 403
Osnabruck
159 074
Arad
159 041
Apeldoorn
158 508
Elektrostal
158 004
Enschede
153 864
Arnhem
153 615
Amersfoort
152 617
Uppsala
151 906
Oxford
151 056
Angers
+2
Level 54
Feb 15, 2021
Great Quiz!
+1
Level 55
Feb 16, 2021
Thanks!
+2
Level 52
Dec 23, 2021
Nice, but what about Ufa, Ulyanovsk or Astrakhan?
+1
Level 55
Dec 23, 2021
Those 3 are outside the standard Jetpunk map, which is what was used a limit for Europe in this quiz. I know it might not be what makes the most sense but the border had to be put somewhere...